Smart Wallet Infrastructure

The wallet experience
your users expect.

Passkeys, invisible gas, cross-chain execution, built-in recovery. Your users never know it's blockchain.


npm install abstractionkit

Read the Docs Try the Demo

// passkeys

Your user taps Face ID. They're in.

No seed phrase. No browser extension. No 12-word backup. WebAuthn passkeys turn smart accounts into something your users already know how to use. Cross-device, biometric, phishing-resistant.

Onchain passkeys with no intermediary. The account is always a self-custodial Safe.

Try it yourself

// chain abstraction

One signature. Every chain.

Your user signs once. The transaction executes on Base, Arbitrum, Optimism, and Polygon simultaneously. No chain switching. No repeated approvals. No bridge.

Merkle tree proofs. No bridges. No relayers. Pure cryptography.

Try the demo

1 signature

verified

verified

verified

verified

Sync account config across chains

One-click multichain recovery

Update owners on 5 chains at once

Cross-chain token transfers

// permissions

Transfer ≤ 100 USDC/day allow

Swap on Uniswap review

Arbitrary contract calls deny

Subscriptions · DCA · Recurring transfers · Agent wallets

Scoped access. Not blank checks.

Grant granular permissions for automated transfers. Recurring subscriptions, dollar-cost averaging, spending limits. Your agent or your app operates within boundaries you define.

// recovery

Lost keys. Not lost funds.

Your users add guardians they trust. Friends, family, their own hardware wallet. If they lose access, guardians recover the account. No seed phrase. No support ticket. No lost funds.

Trusted contacts · Email · SMS · Secondary devices · Hardware wallets

// also included

Your users never see gas.

Sponsor transactions with no-code policies or let users pay in USDC, USDT, or DAI. Set rules in the dashboard. No code required.

Ten transactions. One click.

Combine approvals, transfers, and contract calls into a single operation. One signature. One gas fee. Your users don't wait.

// who builds with us

"We've tried other Bundler solutions, but none have come close to Candide Voltaire's reliability and performance. With 99.9% uptime, we can guarantee a smooth experience for our users."

Juan, CTO and co-Founder of El Dorado

"Candide's support team is always available to help us troubleshoot issues and optimize our integration. They're knowledgeable, responsive, and proactive. It's like having an extension of our own team."

Valentin Sarre, CTO and co-Founder of JOIN Wallet

// built from experience

We built the wallet first.

We built Candide Wallet and spent more time on infrastructure than product. So we extracted it. AbstractionKit exists because we needed it. Every design decision comes from shipping a real wallet on real chains with real users.

Open source · Audited by Ackee, Certora, Nethermind · Formal verification by Certora · Built on Safe · 10+ EVM chains